John h



UNITED v STATES PATENT OFFICE.

JOHN H. STRIOKLER, OF PIGKERINGTON, OHIO.

WRENCH.

SPECIFICATIONforming part of Letters Patent No. 244,685, dated July 19,1881.

Application filed June 7, 1881. (Model.)

To all whom it may concern:

Be it known that I, JOHN H. STRICKLER, ot Pickerington, in the county ofFaireld, and inthe State of Ohio, have invented certain new and usefulImprovements in Wrenches; and I do hereby declare that the following isa fnl-l, clear, and exact description thereof, reference being had tothe accompanying drawings, and to the letters of reference markedthereon, making a part of this specification.

This invention relates to certain improvements in wrenches 5 and it hasfor its objects to provide a device in which the mechanism for operatingthe adjustaple parts will be at the extremity ot' the handle-so as toleave the parts in the neighborhood of the clamping ends of the jawsfree from obstructions', whereby the jaws may be permitted to workcloseup to the surfaces ot' the parts secured by nuts or burrs inbuggies and other vehicles, and machinery in general. These objects Iattain by the device illustrat'ed'in the accompanying drawings, inwhich- Figure 1 represents a side elevation of my improved device, andFig. 2 an end View thereot'. Fig. 3 shows certain parts in section.

The letter A indicates twov spring-jaws, secured at one end to the headB, which is provided with lateral handles O. The said jaws diverge fromthe head B to a point, D, near their free ends, from which point theyconverge to the points E and then extend forward in nearly parallellines, as indicated by the letter F. To the converging parts G of thejaws is secured a sliding brace, H, having inclined apertures I, throughwhich the said converg` ing portions pass. The said braceis providedwith an internally screw-threaded extension, K, in which is adapted togear the screw-threaded end of a rod, L, located between the jaws and 4opassing through an aperture in the head B. The said rod L is shoulderedat M, the shoulder bearing against the inner-face of the head, so thatwhen the rod is turned in the proper direction-it will project the braceforward. The 45 upper end of the rod Lis provided with a thumbnut, N,between which and the head is secured a loosely-fitting washer, l?. rlhesaid thumbnut is secured by means of an ordinary screwnut, R, fitting onthe outer end ot' the rod L, 5o which is screw-threaded for the purpose.

It will be seen that by turning the rod L in Vopposite directions thebrace will be moved back and forth upon the converging portions of thejaws, causing the jaws to approach or recede for the purposes ot'adjustment.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-'- The herein-described wrench, consisting of 6otwo sprin g-jaws secured to a suitable head provided with lateralhandles, the said jaws diverging to a suitable point, then convergingand nally extending forward in nearly parallel linesto theirextremities, and a sliding brace adapted to traverse the convergingportions, the said brace being provided with a threaded extension, inwhich is adapted to work a screwthreaded shouldered rod passing throughan t opening in the head and provided with a thumb- 7 o nut on its outerend, substantially as specified.

In testimony whereof I affix my signature, in presence of two witnesses,this 20th day of May, 1881. i

A JOHN H. STRICKLER. Witnesses:

R. S. ARMSTRONG,- W. F. ZEIGLER.

